US4392491A - Injector - Google Patents

Injector Download PDF

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Publication number
US4392491A
US4392491A US06/288,198 US28819881A US4392491A US 4392491 A US4392491 A US 4392491A US 28819881 A US28819881 A US 28819881A US 4392491 A US4392491 A US 4392491A
Authority
US
United States
Prior art keywords
cartridge
piston
injector
cylinder
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/288,198
Other languages
English (en)
Inventor
Mitsuo Takasugi
Ajoshio Okuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colpo Co Ltd
Original Assignee
Colpo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colpo Co Ltd filed Critical Colpo Co Ltd
Assigned to COLPO COMPANY LIMITED reassignment COLPO COMPANY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TAKASUGI, MITSUO
Assigned to COLPO COMPANY LIMITED reassignment COLPO COMPANY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: OKUYAMA, YOSHIO
Application granted granted Critical
Publication of US4392491A publication Critical patent/US4392491A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M5/2422—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
    • A61M5/2425—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S604/00—Surgery
    • Y10S604/90—Telltale showing entry of blood into body inserted conduit

Definitions

  • An instant injector may be, after use, thrown away or re-used, and even at emergency it may be rapidly charged with a liquid medicine containing cartridge.
  • an injector body as a tube has been in advance filled with injecting liquid, and a mouth is tight-sealed with a temporary cover pierced with a needle.
  • an injector tube is integrally composed with an injecting needle and is prior filled with the medicine liquid and the needle is sealed on its end point. Since a squeezing tube is pressed by the operator with his fingers, it would be deformed and could not always inject a determined amount of the liquid, and it would take a fairly long time.
  • precision is required to sliding between a cylinder and a piston, otherwise the liquid will leak and a piston stopper should be provided.
  • An object of the invention is to provide a cartridge type injector which could be operated rapidly and exactly even at the urgent occasions.
  • Another object of the invention is to provide a cartridge type injector which is possible to do a vascular injection.
  • a further object of the invention is to provide an injector which may be re-used only by exchanging the cartridge without disinfection each time.
  • a still further object of the invention is to provide an injector which could inject almost 100% the medicine contained in the charged cartridge.
  • Another object of the invention is to provide an injector which never misses a piston.
  • FIG. 1 is a vertical cross sectional view of the most preferred embodiment of the invention
  • FIG. 2 is a view showing disassembly of the above mentioned embodiment
  • FIG. 3 is an enlarged vertical cross sectional view showing an operation of the embodiment.
  • the present invention is substantially composed of a needle portion, an injector tube, a cylinder and a piston.
  • the needle portion has a hollow needle 2 of a desired length extending in opposition to the injecting needle 1, and is provided in ring with a projection 4 within a fitting portion 3 to be engaged with a needle connecting portion 6 of an injecting tube 5.
  • the injecting tube 5 is defined with more than one of concaves 7 and 7a on the connecting portion 6, and is formed with a hollow space 10 to be charged with a film-like cartridge 9 with a sealing cover 8 holding the liquid as shown in FIG. 2.
  • the projection 4 engages the concave 7 into restraint, and accordingly the hollow needle 2 is positioned to have its end portion slightly spaced from the sealing cover 8.
  • the piston 11 has an engaging convex 17 on a head 12 thereof, and it makes the head 12 narrower in diameter than an inner diameter of the space 10 over more than 1/2 of the depth of the space 10, and forms a step 13 on a sliding surface following the head 12.
  • the position of the step 13 is restrained at a reduced diameter end opening which defines a stop 15 of a cylinder 14.
  • the cylinder 14 includes a large diameter portion and a small diameter portion.
  • the large diameter portion of cylinder 15 is adapted to be coaxially positioned about the body of the injecting tube 5, and the piston 11 is inserted into the small diameter portion of cylinder 14 from the large diameter portion of cylinder.
  • the small diameter portion has the stop 15 at a circumferential edge of an opening thereof, so that the piston 11 contacts, when moving in opposition, to the step 13 and does not get out from the cylinder 14.
  • the injector tube 5 is air-tightly mounted with a needle protecting cap 16 on a neck thereof.
  • the cartridge 9 has an engaging concave 18 in correspondence to the engaging convex 17 of the piston 11.
  • the positioning relation of the convex 17 and the concave 18 may be reversed, that is, it is allowable to make a projection on the bottom of the cartridge 9 and makes a recess on the head of the piston 11.
  • the injector of this invention is constructed as mentioned above, and is set up by positioning the cartridge 9 into the hollow interior 10 of the injector tube 5 having the injecting needle, and inserting and pushing the piston 11 into the cylinder 14 from its large diameter portion until the step 13 contacts the stop 15. Then, the large diameter portion of the cylinder 14 is positioned coaxially of and radially outwardly of the injector tube 5, and the piston 11 pushed slightly so that the convex 17 is engaged with the concave 18 and thus the assembly of the injector is completed (refer to FIG. 1).
  • the cap 16 is removed and the pressure is effected to the injecting needle 1 toward the tube 5, so that the projection 4 is urged into the other groove 7a from the groove 7, whereby the hollow needle 2 pierces the sealing cover 8 of the cartridge 9 and reaches the liquid agent therein. Then, when pushing the piston 11 on its end portion, the liquid agent in the cartridge 9 goes to the injecting needle 1 through the hollow needle 2. As the piston head 12 is pushing the bottom of the cartridge 9 while the convex 17 is engaged with the concave 18, the cartridge film overlaps by turning over itself (doubles over) and makes a double film, and the liquid agent in the cartridge 9 exhausts all the amount up to its throat. This amount is a predetermined amount.
  • the present invention makes, by one action of fitting the needle, a connection of the liquid agent in the cartridge and the hollow needle and further the injecting needle. Therefore, it is like that the needle goes into Ampulle, and the liquid never touches other members. This is very hygienic and being without disinfection and possible to use it only by charging the cartridge, this is very suitable the urgent occasions in the outdoors, and further the liquid does not leak at all.
  • the invention is much suited to the urgent cases, since it may omit time and steps for conventionally breaking Ampulle at its neck, absorbing the liquid into the injector, expelling the air from the tube and injecting the liquid.
  • the invention does not need to pay attention to the precision of the air-tight sliding between the cylinder and the piston or to the air tight packing of the piston head, and no precision is required to any parts. Also in the instant injector, transparency is preferable, but opacity for heat and light insulation in view of the weather resistibility of the liquid is not impreferable, and it is sufficient to make a mark for the liquid volume at the end of the piston.
  • the cartridge is pushed by the piston and the cartridge film is turned over (doubled over) between the injector tube and the piston head. This condition corresponds to the slide contacting surface between the cylinder and the piston, so that the liquid is all exhausted.
  • the invention is very useful to calamities such as earthquakes, mountain-climbing, travelling, fire accidents and others.
  • This invention is an excellent injector in safety, stability and function.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US06/288,198 1980-08-05 1981-07-29 Injector Expired - Fee Related US4392491A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10680680A JPS5731870A (en) 1980-08-05 1980-08-05 Injector
JP55-106806 1980-08-05

Publications (1)

Publication Number Publication Date
US4392491A true US4392491A (en) 1983-07-12

Family

ID=14443092

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/288,198 Expired - Fee Related US4392491A (en) 1980-08-05 1981-07-29 Injector

Country Status (6)

Country Link
US (1) US4392491A (de)
EP (1) EP0047398B1 (de)
JP (1) JPS5731870A (de)
AT (1) ATE10807T1 (de)
DE (1) DE3167825D1 (de)
SU (1) SU1145912A3 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634023A (en) * 1984-01-25 1987-01-06 Kabushiki Kaisha Alpha Giken Container
US4713061A (en) * 1986-07-14 1987-12-15 Survival Technology, Inc. Cartridge with universal plastic hub
US5413564A (en) * 1994-03-02 1995-05-09 Silver; Jules Predetermined dosage hypodermic syringe system
US6328715B1 (en) * 1999-09-21 2001-12-11 William B. Dragan Unit dose low viscosity material dispensing system
US6652494B1 (en) 1999-09-21 2003-11-25 Centrix, Inc. Unit dose low viscosity material dispensing system with easy loading
US20170035974A1 (en) * 2014-04-25 2017-02-09 Bayer Health Care Llc Syringe with rolling diaphragm
US10933190B2 (en) 2015-04-24 2021-03-02 Bayer Healthcare Llc Syringe with rolling diaphragm
US11207462B2 (en) 2016-10-17 2021-12-28 Bayer Healthcare Llc Fluid injector with syringe engagement mechanism
US11389585B2 (en) 2016-09-16 2022-07-19 Bayer Healthcare Llc Pressure jacket having syringe retaining element
US11547793B2 (en) 2016-10-17 2023-01-10 Bayer Healthcare Llc Fluid injector with syringe engagement mechanism
US11826541B2 (en) 2017-09-13 2023-11-28 Bayer Healthcare Llc Sliding syringe cap for separate filling and delivery
US11839751B2 (en) 2020-06-18 2023-12-12 Bayer Healthcare Llc In-line air bubble suspension apparatus for angiography injector fluid paths
US11918775B2 (en) 2019-09-10 2024-03-05 Bayer Healthcare Llc Pressure jackets and syringe retention features for angiography fluid injectors
US11938093B2 (en) 2020-02-21 2024-03-26 Bayer Healthcare Llc Fluid path connectors for medical fluid delivery

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090413A3 (de) * 1982-03-29 1985-11-06 Colpo Company Limited Patrone und Vorrichtung zum Entleeren derselben
GB8706378D0 (en) * 1987-03-18 1987-04-23 Seldoren Ltd Injection device
GB8800883D0 (en) * 1988-01-15 1988-02-17 Id Tech Ltd Single-use syringe
AU595096B2 (en) * 1988-02-10 1990-03-22 Astra Pharmaceuticals Pty Ltd Plastic cartridge and syringe
DE4127343A1 (de) * 1991-08-19 1992-02-27 Schuett Hans Werner Prof Dr Vorrichtung zum schutze vor verletzungen durch spritzen mit nadeln, kanuelen oder duesen aller art, insbesondere im medizinischen bereich
DE19522451C2 (de) * 1995-06-21 1997-11-06 Bernd Hansen Vorrichtung zur Abgabe eines fließfähigen Stoffes aus einem Behälter
GB2307643A (en) * 1995-12-02 1997-06-04 Epsom Glass Ind Ltd Pre-fillable disposable syringe
JPH09173450A (ja) * 1995-12-26 1997-07-08 Nissho Corp プレフィルドシリンジ
JP4187922B2 (ja) 2000-09-14 2008-11-26 テルモ株式会社 液体注入針および液体注入装置
WO2011068130A1 (ja) * 2009-12-02 2011-06-09 テルモ株式会社 プレフィルドシリンジ
US8608710B2 (en) * 2010-12-09 2013-12-17 Becton Dickinson & Company Pen needle assembly with different gauge needle cannulas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069835B (de) * 1954-09-16 1959-11-26 S. ß- R. J. Everett & Co. Limited, Thornton Heath, Surrey, und Bernard Camber, London (Großbritannien) Spritzengestell für eine durch eine seitliche Gestellöffnung einführbare Ampulle
US2950717A (en) * 1955-03-21 1960-08-30 R K Price Associates Inc Ampules
GB1205021A (en) * 1966-11-25 1970-09-09 Eric Katz Improvements in or relating to hypodermic syringes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR381775A (fr) * 1907-09-13 1908-01-21 Karl Krautschneider Instrument pour injections
US2514575A (en) * 1945-02-17 1950-07-11 Howard T Hein Introversion syringe
US3110309A (en) * 1960-08-15 1963-11-12 Brunswick Corp Plastic cartridge needle assembly
CH424095A (de) * 1965-01-21 1966-11-15 Georg Jansson Karl Spritze, insbesondere für medizinische Zwecke
DE1917739A1 (de) * 1969-04-05 1970-10-08 Bayer Ag Neue Derivate der Thiocarbamidsaeure
JPS5122560Y2 (de) * 1971-07-16 1976-06-10
DE2315367A1 (de) * 1973-03-28 1974-10-17 Hoechst Ag Injektionsspritze zur einmaligen verwendung
JPS52126991A (en) * 1976-04-17 1977-10-25 Asahi Chemical Ind Ampule for jet injection use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069835B (de) * 1954-09-16 1959-11-26 S. ß- R. J. Everett & Co. Limited, Thornton Heath, Surrey, und Bernard Camber, London (Großbritannien) Spritzengestell für eine durch eine seitliche Gestellöffnung einführbare Ampulle
US2950717A (en) * 1955-03-21 1960-08-30 R K Price Associates Inc Ampules
GB1205021A (en) * 1966-11-25 1970-09-09 Eric Katz Improvements in or relating to hypodermic syringes

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634023A (en) * 1984-01-25 1987-01-06 Kabushiki Kaisha Alpha Giken Container
US4713061A (en) * 1986-07-14 1987-12-15 Survival Technology, Inc. Cartridge with universal plastic hub
US5413564A (en) * 1994-03-02 1995-05-09 Silver; Jules Predetermined dosage hypodermic syringe system
WO1995023622A1 (en) * 1994-03-02 1995-09-08 Jules Silver Predetermined dosage hypodermic syringe system
US6328715B1 (en) * 1999-09-21 2001-12-11 William B. Dragan Unit dose low viscosity material dispensing system
US20020010430A1 (en) * 1999-09-21 2002-01-24 Dragan William B. Unit dose low viscosity material dispensing system including syringe with breach
EP1086661A3 (de) * 1999-09-21 2003-04-02 Centrix, Inc. Einzeldosissystem zur Ausgabe eines Werkstoffs von niedriger Viskosität
US6652494B1 (en) 1999-09-21 2003-11-25 Centrix, Inc. Unit dose low viscosity material dispensing system with easy loading
US6869419B2 (en) 1999-09-21 2005-03-22 Centrix, Inc. Unit dose low viscosity material dispensing system including syringe with breach
US10583256B2 (en) * 2014-04-25 2020-03-10 Bayer Healthcare Llc Syringe with rolling diaphragm
US20170035974A1 (en) * 2014-04-25 2017-02-09 Bayer Health Care Llc Syringe with rolling diaphragm
US11717614B2 (en) 2014-04-25 2023-08-08 Bayer Healthcare Llc Syringe with rolling diaphragm
US10933190B2 (en) 2015-04-24 2021-03-02 Bayer Healthcare Llc Syringe with rolling diaphragm
US11389585B2 (en) 2016-09-16 2022-07-19 Bayer Healthcare Llc Pressure jacket having syringe retaining element
US11207462B2 (en) 2016-10-17 2021-12-28 Bayer Healthcare Llc Fluid injector with syringe engagement mechanism
US11547793B2 (en) 2016-10-17 2023-01-10 Bayer Healthcare Llc Fluid injector with syringe engagement mechanism
US11975172B2 (en) 2016-10-17 2024-05-07 Bayer Healthcare Llc Fluid injector with syringe engagement mechanism
US11826541B2 (en) 2017-09-13 2023-11-28 Bayer Healthcare Llc Sliding syringe cap for separate filling and delivery
US11918775B2 (en) 2019-09-10 2024-03-05 Bayer Healthcare Llc Pressure jackets and syringe retention features for angiography fluid injectors
US11938093B2 (en) 2020-02-21 2024-03-26 Bayer Healthcare Llc Fluid path connectors for medical fluid delivery
US11839751B2 (en) 2020-06-18 2023-12-12 Bayer Healthcare Llc In-line air bubble suspension apparatus for angiography injector fluid paths

Also Published As

Publication number Publication date
JPS613229B2 (de) 1986-01-30
JPS5731870A (en) 1982-02-20
DE3167825D1 (en) 1985-01-31
EP0047398B1 (de) 1984-12-19
EP0047398A1 (de) 1982-03-17
SU1145912A3 (ru) 1985-03-15
ATE10807T1 (de) 1985-01-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: COLPO COMPANY LIMITED, NO. 11-5,2-CHOME, KYOBASHI,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:TAKASUGI, MITSUO;REEL/FRAME:003915/0871

Effective date: 19810723

AS Assignment

Owner name: COLPO COMPANY LIMITED; NO. 11-5, 2-CHOME, KYOBASHI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:OKUYAMA, YOSHIO;REEL/FRAME:003929/0880

Effective date: 19810922

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